Glue-kettle.



v G. .S PERKINS, BXEOUTRLX,4

GLUE KETTLE'". APPLICATLON FILED MAR.4, 1911.

Patented sept. 1, 1914.

3 SHEETSfSHEET l.

P. G. PERKINS, DBGD. G. S. PERKINS, BXEUUTRIX.

GLUE KBTTLE. APPLIoATloN FILED MAR. 4, 19'11.

Lw, I @WW Patellted Sept. 1, 1914.-

3 SHEETS- SHEET 2.

= P. G. PERKINS,`DBGD.

G. S. PERKINS, EXEGUTRIX.

Y GLUE KETTLE. APPLIGA'MUN P1LED MARA, 1911.

Patented Sept. 1, 1914.

3 SHEETS--SHEET 3.

. y Beit known that FRANK Gr. PERKINS,

'miran STAWENT rarer..

FRANK G. PERKINS, DECEAASED,ILATE OF LANSDALE, PENNSYLVANIA, BY GERTRUDEs., rnitxrnsynxncurarx, or LANsnALE, PENNSYLVANIA, Assrsnoa To PERKINSGriffon co. A conrogaarron or rENNsYLvANrA.

@Lun-Kearns.

Specification of Letters Patent;

Application ledMarch 4, 1911. Serial No. 612,181.

To all whom t may cof/wem d eceased, late of lbansdale, borough ofLansdale, State ofPennsylvania, did invent certain new and usefulImprovements in Glue- Kettles, of which the following is' aspecification.. Y A

The invention relates to improvements in glue kettles orglue mixingapparatus and various objectsof the invention are to provide anapparatus of this class which' is especially simple and easy ofconstruction and eflicient and economical in operation and manufacture,and also which is especially applicable to manufacturev or treatment ofglue made from a vegetable base.

Further objects, features and advantages will `more clearly appear' fromthe detailed l description given below .taken in connection .with theaccompanying drawings which form a part of this specification.

In the drawings Figure 1 is a vertical section through the apparatus.Fig. 2 is a top view partly in section 'on the line II-I gf Fig. 1. Fig.the line III of Fig. 1. Fig. l is a bottom view of the apparatus, and.Fig. .5 is a detail section taken on the line VQ-V of Fig. 1.

Referring to. the drawings, 1 represents a main container provided witha steam ]aclret 2 cylindrically arranged about its sides.-

.. The bot-tom 3 of the container inclines downv ardly toward the centerwhere it is provided with a glue outlet 4. At or below the outlet 4there is a gate valve 5 Vfor admitting or shutting ott' the supply ofglue to below from the container. Bolted to the upper part of thecontainer is a cast iron top 6 having a bearing 7 in which a verticalshaft 8 is journaled. The top 6 has two upright members 9 integraltherewith which carry Aan 'upper bearing 10 for the shaft S. Secured tothe upper end ofthe shaft 8 is a beveled pinion 11 which meshes with abeveled pinion 12 secured to a shaft 13 journaled i'n bearings let and`15 on the uprights 9, Gn the shaft T113 are fast and loose pulleys 16and 17 so, that the shafts 13 and 8 may be driven from any suitablesource of tand power. The apparatus-is supported by lugs 18 integralwith the main container, which lugs may be bolted to the floor and theoutlet 3 is a transverse section on part of the bottom 3- extend doW1 1through the floor tothe room below to which glue is supplied from theapparatus.

Secured to the lower end of the shaft 8 at 19 is a stirrer 20. For thispurpose the stirrer 20- is enlarged at 19 and is provided with acylindrical opening into which the shaft 8 extends as shown by dottedlines.

rateatea sept. i, 1era..

A. set` screw may be used to firmly secure the shaft to the stirrer. Thestirrer 20 is made of one integral casting having integral radial arms21 extending horizontally` in one direction substantially to the in sidewallof the container. rlhe stirrer also has integral radial arms 22extending horizontally in the opposite direction and in the samevertical plane as the arms 21. The arms 2.1 carry at their outer ends anintegral upright or vertical member 23. The .arms 22 only extend abouthalf way from the center of the stirrer to the inside wall of thecontainer and carry at their outer ends an integral vertical or uprightmember 2-1 which travels in a circular path between the axis of thestirrer and the path taken by the upright member 23. A slight space isprovided between the upright member 23 and the inside wall of thecontainer. Y

The underneath or lower surfaces of the arms 22 are beveled off orinclined as shown in Figs. 1 and 5, in a direction to tend to force theglue downwardly. The arms 21 are also beveled olf or inclined o n theirlower sides in the saine manner and in a direction to force the gluedownwardly. The upright member 23 is beveled on' or inclined on itsinner side as shown in Fig. 3, in a direction t0 force the glue ormixture inwardly. The upright member 2e is beveled olf orv inclined onlits outer side, as shown in Fig. 3, in a direction to force the gluemixture outwardly. Integral with the stirrer 2O is an open.

In order to accommodate different sized batches and different spacesinto which the apparatus may be putthe apparatus is made extensible oradjustable. For this purpose ,ttension of theA container is L avhicialso has steam jacket i2 that the co tainer is med of e of cylindricalsections superpose@ another. Steam pipes :'29 and l5 the jacket d pipes3l and pipe 33 also lev 2 for dratvine' provi the shalt 8 as 'cy tiri-erextension 3e is prov arms 3G and 37 like the ari s 2i and respectively,in every partie ...il also With-upright members 38 and 39 like theupright members Q3 and 24, respectively. lt will thus be seen that thesizeof the apparatus may be adjusted toA suit require-y ments.

On one side of the top piece the container is covered by a plate 40bolted to the container. piece 6 the container is provided with a cover41 hinged to the part 6 at 42 and provided with a handlet for liftingthe cover to admit of the glue materials being placed in the container.Y

The glue or glue materials are placed in the apparatus and the stirrerset in motion to` thoroughly mix the same and stir the glue. The steamjackets will serve to lkeep the bath at the proper temperature ir"necessary. After -being'fully treated the .gate valve 5 may be openedand the screaT i6 Will readily force the glue through the glue outlet tothe roomlbelow. The particular' larrangement of stirrerA shown is foundesi ent No..'13,l36.' The glue rthere described is pecially advantageousin the preparation of vegetable glue or glue made from a vegetable baseand the particular beveling of the stirrer members is ,foundadvantageous in this regard. The 'inclination of the botvtom' toward theoutlet makes more easy the Withdrawal of thebatch and the Vmember 25aidsin this respect.

.The particular glue vtor which `this appaiatus -is'eSpeCially adaptedis the vegetable glue described in U. S. Letters Patent No5'. 1,020,656.and Reissue Letters Pata colloid-'of greatmviscosity'.formed bydissolving starch flour in Water and caustic soda, and it .apparentlycontains besides a large proportion of hydrosols an enormous numberonuclei, and owing to its unusually. high concentration (about.30%) it isprone to gelatinize. The causes for requiring a specially adapted mixingkettle and the functions of: its partsappea'rjto be fas follows: As soonas hydrogel particles begin to form a minute Weblike structure iscreated with YWalls perhaps entirely invisible under a. microscope, andras the starch molecule is" vrelatively large, this structure isextensive and Will,` long remain ,like a fluid vUnder 'g the influencevof surface'ten- @n the other side of ythe top' sion np imL suits aSegre,3-J

trous hy egel groups l `ifor any length. er time attach themselvesthvrcto strongly is not( sutiicient to remove these aggregations bodilybut they must be desegegated by breaking down the invisible dividingWalls and ltearing up the ropy structure.

In the apparatus shown and described, the upright members-23 and 28 andbottom scraper 25v ruiming close to the Walls of the container, not onlyserve to prevent the gelatinous aggregates from collecting, growing andkattaching themselvesto the side and bottom of the container, but alsoact to desegregate any such masses as may be termed. The intermediatestirring members4 2xt and 29 act to desegregate or prevent segregationin the body of the glue mass by tearing through the segregation walls`liberating the contents of the segregation cylinders, etc. anddisintcgrating and distributing ,the fragmentary parts of these Walls.

The screw blade '96 operating in the glue outlet acts to stir anddesegregate the glue -in the outlet when the valve 5 is closed, and

this screw blade 26 is of such size and shape that it will not packanysolid material (as thestarch flour suspended in Water) in the outletwhen the outlet is closed,` but upon opening the valve 5 the blade torcethe glue through the outlet. Although the improvements havebeendescribed in great detail it is not desired that the invention in itsbroadest aspects be limited to such details except as clearly pointedout in the, appended claims, since many changes and modifications may-Well be made Without departure from the spirit and scope of theinvention in its broadest aspects. o i n Having thus .fully and clearlydescribed the. invention what is claimed and desired to be secured byLetters Patent, is: l. A glue kettle A comprising a main containerhaving a heating jacket .about Iits sidesl and an 'outlet` from its,bottom, the bottom inclining downwardly tovvard said outlet, a valve insaid outlet, a` stirrer in the 26 acts@ f containerhsaid stirrer .havingradial arms 4 the container and carrying an upright mem'- bei` whichruns near the inside wall of the container; and the arms extendingin theopposite direction being shorter than said 'first mentioned arms andcarrying an upright vmember which runs intermediate the center of thekettle and the path of said first mentioned upright member, said armsbeing beveled on their underneath sides in a direction to force the gluedownwardly, said first mentioned upright member being beveled on itsinner side in a direction to force the lue inwardly, said' secondmentioned upright member being beveled on its outerfside in a directionto force the glue outwardly, a screw carried by said stirrer for forcingthe glue out through said outlet, and means for operating said stirrer.j

2, A glue kettle comprising a main container having an outlet fromits-bottom, a stirrer in the container, said stirrer having radial armsextendingin opposite directions in substantially the same plane, thearms eX- tending in 'one direction nearly to the inside wall of thecontainer and carrying an-upright member which runs near the inside wallof the container, and the arms extending in the opposite direction beingshorter than said first mentioned arms and carrying an upright memberwhich runs intermediate -the center of the kettle and the path ofsaidiirst mentioned upright member, said arms being beveled on theirunderneath sides in a direction to force the glue downwardly, said i rstmentioned upright 'member being beveled on its inner side in a directionto force the glue inwardly, said second mentioned' right member whichruns near the inside wall of thecontainer and also carryin an uprightmember which runs interme iate` the center of the kettle and the patho'f said first mentioned upright member said first mentioned uprightmember being beveled on its inner side in a direction to force the glueinwardly and 'said second mentioned upright member being beveled on itsouter side in a direction to force the glue outwardly to moreeffectively stir the glue, said means for .forcing the glue through said-outlet comprising a screw integral with said stirrer.

In testimony whereof, 1 have signed my name to this specication in thepresence of two subscribin witnesses.

l G RTRUDE S. PERKINS, E meeuw/ of deceased.- Witnesses:

'R. C. WENDT, L, MGMILLEN.

the estate 0f Fraz/L71; G. Perkins,

